Brobo OHS Series User manual
BROBO
GROUP
A LIFETIME OF RELIABILITY
Certified System
TM
Quality
ISO 9001
AND OWNED
PRODUCT AND
MAINTENANCE MANUAL
OHS SERIES METAL SAWS MODEL No. S315G, S350G, S400G
•Precision Drilling Machines
• Tapping Machines
• Multi-Head Drills
• Tool Grinders
• Tool Post Grinders
• Machine Vices
• Special Production Equipment
• Accessories
• Riveting Machines
• Pedestal Grinders
• Metal Cutting Saws
• Linishers
Brobo Group (Aust) Pty Ltd
ABN 42 098 264 316
8 Fowler Road
Dandenong South Vic 3175
Australia
+61 3 9794 8751
Fax +61 3 9794 8792
brobo.com.au
Tel
PRODUCT MANUAL COLD SAWS G MODEL
PART 1 TECHNICAL SPECIFICATIONS
Blade Selection Charts
PART 2 INSTALLATION
Connect To Power Source
PART 3 SAFETY & ACCIDENT PREVENTION
Reference Standards
PART 4 MAIN FUNCTIONS & OPERATIONS
Prepare For Operations
Operation Recommendations
PART 5 ADJUSTMENTS
Changing The Blade
Cutting & Feeding Speeds
Refilling The Lubricator
Adjusting The Brobolube Unit
Lubricating Oil Precautions – Health Hazard Information
PART 6 MAINTENANCE AND SELECTION OF CONSUMABLES
Role Of The Operator
Maintenance Requirements
General Maintenance Of Functioning Components
PART 7 TROUBLESHOOT
Troubleshooting For Blade & Cutting Problems
General Troubleshooting
APPENDIX
PART 8 DRAWINGS & SPARE PARTS
PART 1 TECHNICAL SPECIFICATIONS
STANDARD BLADE SIZES
OD x Thickness x Bore Size (mm) x Number of Teeth
315 x 2.5 x 40 x 160
350 x 2.5 x 40 x 180
400 x 3.0 x 40 x 220
DIMENSIONS SPECIFICATION
BASE Length x Width 550 mm x 660 mm
Table Working Height 967 mm
Saw Height (no handle) 1500 mm
Saw Height with handle 1900 mm
Saw Height Flool Model 1150 mm
Packaging with Pallet 900 mm x 710 mm x (H) 1055 mm
WEIGHT UN-PACKED PACKED
Saw Unit 136 kg (300 lb.) 150 kg (330lb.)
Coolant Tank Complete 17 kg (42 lb.) 17 kg (42 lb.)
Sheetmetal Stand 28 kg (62 lb.) 28 kg (62 lb.)
Manual Vice Unit 25 kg (55 lb.) 25 kg (55 lb.)
CUTTING RANGE
Note: The above values are based on a full-size blade.
The capacities will reduce accordingly when a worn blade is resharpened.
Specifications are
for NEW blades only.
Cutting dimensions
will reduce with
re-sharpening of
blades
CUTTING RANGE
PRODUCT
90
45
S315G/VS315G
80 x 120
80 x 80
90
45
90
80
90
45
100
100
S350G/VS350G
85 x 150
95 x 110
105
90
118
110
S400G/VS400G
100 x 150
100 x 110
115
105
140
125
300 315 350 400
280 280 280 300
160 160 200 240
140 140 160 200
120 120 140 140
80 80 100 120
‐‐80 100
300 315 350 400
3 180 180 220 240
2 240 240 280 340
1 300 320 350 400
4 140 140 160 180
3 160 160 180 200
2 220 220 260 280
1 300 320 350 400
5 120 140 160 180
4 140 160 180 200
3 160 180 200 220
2 220 220 280 300
1 300 320 350 400
5 140 140 160 160
4 160 160 180 180
3 180 200 200 220
2 200 240 220 240
1 280 300 320 360
5‐140 120 140
4‐160 140 160
3‐200 180 180
2‐220 200 220
1‐300 300 340
5‐‐120 140
4‐‐160 160
3‐‐180 180
2‐‐200 220
1‐‐300 340
100mm
BLADEDIAMETERmm
HOLLOWTUBEBLADESELECTIONCHART
MATERIALOUTSIDE
DIAMETER
BLADEDIAMETERmm
WALL
THICKNESS
120mm
SOLIDMATERIALBLADESELECTIONCHART
MATERIALDIAMETER
10mm
20mm
30mm
40mm
50mm
>60mm
20mm
40mm
50mm
80mm
PART 1 TECHNICAL SPECIFICATIONS
BLADE TYPE:
AISI M-Z High-Speed Steel (62-64 HRC, Hollow Ground)
Blue-oxide coated for:
• Greater durability,
• Better coolant conveyance to the cutting edge,
• Reduces galling or "pick-up" on sides of the blade,
• Reduces brittleness of the steel.
TOOTH FORM
Bevelled on alternate sides - up to 180 teeth, or
High-rolling, low-finishing teeth, "triple-chip" - above 180 teeth
DRIVE PIN HOLES
S315 & S350 Series 2 x ∅8 mm x PCD 55 mm
S400 Series 2 x ∅10.5 mm x PCD 64 mm
WORM GEAR DRIVE RATIO
Reduction 1:33 No of Starts (Shaft) : No. Teeth (Wormwheel)
SOUND LEVEL (DBA):
85 - 90 dB (A) Maximum
MOTOR SPECIFICATIONS
Power Supply (Hz) Phase Voltage RPM Kilowatt (kW)
50Hz 1 240 1430 1.7
50Hz 3 415 1420 / 2680 1.5 / 2.2
50Hz 3 415 650 / 1350 1.1 / 1.5
60Hz 1 230 1700 1.7
60Hz 3 220 850 / 1700 1.1 / 1.5
60Hz 3 440 850 / 1700 1.5 / 2.2
60Hz 3 220 1700 / 3400 1.1 / 1.5
VICE CLAMPS
Clamping Range: 0 - 153 mm
MOTOR TYPE BLADE SPINDLE RPM
S315 S350 S400
HZ PHASE RPM RPM m/min RPM m/min RPM m/min
50
3 650 21 20 21 23 21 27
1/3 1350/1420 42 40 42 47 42 53
3 2680 85 80 85 93 85 106
HZ PHASE RPM RPM ft/min RPM ft/min RPM ft/min
60 (USA)
3 850 26 84 26 93 26 106
1/3 1700 52 168 52 196 52 212
3 3400 103 334 103 370 103 424
300 315 350 400
280 280 280 300
160 160 200 240
140 140 160 200
120 120 140 140
80 80 100 120
‐‐80 100
300 315 350 400
3 180 180 220 240
2 240 240 280 340
1 300 320 350 400
4 140 140 160 180
3 160 160 180 200
2 220 220 260 280
1 300 320 350 400
5 120 140 160 180
4 140 160 180 200
3 160 180 200 220
2 220 220 280 300
1 300 320 350 400
5 140 140 160 160
4 160 160 180 180
3 180 200 200 220
2 200 240 220 240
1 280 300 320 360
5‐140 120 140
4‐160 140 160
3‐200 180 180
2‐220 200 220
1‐300 300 340
5‐‐120 140
4‐‐160 160
3‐‐180 180
2‐‐200 220
1‐‐300 340
100mm
BLADEDIAMETERmm
HOLLOWTUBEBLADESELECTIONCHART
MATERIALOUTSIDE
DIAMETER
BLADEDIAMETERmm
WALL
THICKNESS
120mm
SOLIDMATERIALBLADESELECTIONCHART
MATERIALDIAMETER
10mm
20mm
30mm
40mm
50mm
>60mm
20mm
40mm
50mm
80mm
PART 1 BLADE SELECTION CHARTS
NOTE - CHART GUIDE ONLY
This chart is issued as a guide only. Many other factors would attribute to the cutting
performance of both the saw blade & the cutting saw machine. BROBO GROUP Pty.
Ltd. will not accept any responsibility for the blade selection and/or machine breakag-
es or unsatisfactory cutting performance of both the blade and/or the machine as a
direct result of the selection.
PART 2 INSTALLATION
Upon receiving the Brobo Group S315G/S350G/S400G Series Metal Cutting Saw, the ma-
chine should be standing upright & positioned centrally on top of a wooden pallet.
While the machine is situated on the pallet, position the forklift arms under the pallet between
the runners, keeping in mind that the machine is head heavy.
Move the entire unit to an accessible area as close as possible to the final location.
Carefully remove the wooden frame surrounding the saw unit. Once completed, proceed by
elevating the machine away from the pallet base using a sling harness wrapped around the
cutting head of the saw. Ensure that the floor is as level as possible before finally positioning
the machine to the desired location.
Along with the saw unit, check that the following accessories, packed “loose”, are included
as follows:
STANDARD ACCESSORIES
• 1 x Saw Blade
• 1 x Operating Handle
• 1 x Service Kit (Allan Key 10mm & 14mm)
• 1 x Operating Manual (Softcopy - Download from brobo.com.au)
H =1055
710
900
WARNING - HEAD HEAVY MACHINE
The metal sawing machines are heaviest where the saw heads are fitted & as such,
care must be taken while relocating or moving the machines.
PART 2 INSTALLATION
For the machine to function correctly, the room in which the saw unit is to be installed must
be in the vicinity of, & satisfy the following conditions:
REQUIREMENTS
• 415/240V Power Supply
• Ambient Temperature: From -10°C to +50°C.
• Relative Humidity: Not more than 90%.
• Lighting: More than 500 LUX.
ANCHORING THE SAW
The base of the fabricated stand in which the
saw head rests on, is anchored to the floor by
4 x M12 bolts provided. For added stability, it is
strongly recommended that the machine stand
is fastened to the floor by using loxins (not pro-
vided). When positioning & fastening the unit,
please refer to the hole locations shown
OPTIONAL ACCESSORIES
• 9311270 Standard Adjustable Length Stop (600mm)
• 9501560 Micro Flip Over Stop Complete Including Arm
• 9501460 3 Metre Broborule Length Stop Kit
• 9501480 6 Metre Broborule Length Stop Kit
• 9311060 Manual Vice Assembly
• 9301950 Manual Dual Arm Vice
• 9501090 Gearbox Oil
WARNING - OPERATING VOLTAGE VARIATION
Each saw model has an inbuilt safety system to protect it against voltage variations.
However, for the machine to perform efficiently, ensure that the saw unit operates
within 10% limits of the recommended voltage of the motor.
PART 2 CONNECT TO POWER SOURCE
POWER SUPPLY
The 415/240V power supply requirements for this machine are of a high level & unautho-
rized interference and/or inadequate maintenance could result in a situation that could put
the operator at risk. A qualified electrical engineer should always be assigned to maintain &
repair the system.
International Protection Rating code (Ingress Protection): IP54
First Digit: Solid - Level 5: Protected from limited dust ingress.
Second Digit: Liquid – Level 4: Protected from water spray from any direction.
SINGLE & THREE PHASE
Single phase machines are provided with three pins, 15 amps rated plugs & leads for con-
nection to 240V, 50Hz power supply in Australia.
Active = BrownBrown VOLTAGE MAIN VOLTAGE
Neutral = Light BlueLight Blue 240V/1 PH 240V
Earth = GreenGreen/YellowYellow
Three phase machines should be fitted with a suitable, approved four pin plugs
Active = BrownBrown , White. Dark Blue VOLTAGE MAIN VOLTAGE
Earth = GreenGreen/YellowYellow 415V/3PH 415V/3PH
WARNING
Before connecting the machine to the power supply, check that the socket is not
connected in series with other machines. This condition is critical for the ideal op-
eration of the saw unit.
PART 2 CONNECT TO POWER SOURCE
TO CONNECT THE MACHINE TO THE POWER SUPPLY, PROCEED AS FOLLOWS:
1. Insert the power plug into the socket, while ensuring that the mains voltage is compatible
for which the saw unit is operating at.
2. Switch the saw on by rotating the control switch located on the saw head assembly as
shown below.
3. Check that the motor is operating in the correct direction, that is the blade is rotating-
downwards & into the direction of the vice clamps.
4. Ensure that all electrical leads & cables (including supply leads) are maintained in a good
condition
WARNING
Check the power supplied & motor specifications before plugging in the machine.
Check the terminal connection on dual voltage motor terminal box & connect it ac-
cordingly to the corresponding voltage supply.
If the dual motor is requested, the motor is always connected to the higher voltage,
unless otherwise specified prior to the order being placed.
PART 3 SAFETY & ACCIDENT PREVENTION
The Brobo Group S315/S350/S400 Series Metal Cutting Saw has been designed & man-
ufactured in accordance with Australian Standards. It is HIGHLY RECOMMENDED that the
instructions & warnings contained in this chapter be carefully followed for correct usage of
the machine.
OPERATION OF THE MACHINE
The Brobo Group S315/S350/S400 Series Metal Cutting Saw is specifically designed to
cut ferrous & non-ferrous metal cross sections with solid or thin-walled profiles. Other types
of material & machining are not compatible for use with the specifications of the saw. This
machine involves a high-speed blade rotation; therefore extreme caution is required when
operating the device.
The employer is responsible for instructing the personnel who, in turn, are obliged to inform
the operator of any accident risks, safety devices, noise emission & accident prevention reg-
ulations provided for by national & international laws governing the use of the machine. The
operator must be fully aware of the position & functions of all the machine’s controls.
All those concerned must strictly adhere to ALL instructions, warnings, & accident prevention
standards in this manual.
The following definitions are those provided for by the EEC DIRECTIVE ON MACHINERY No.
98/37/CE:
Danger Zone - any zone in and/or around a machine in which the presence of a person con-
stitutes a risk for the safety & health of that person.
Person Exposed - any person finding him or herself, either completely or partly in a danger
zone.
Operator - the person or persons are given the responsibility of installing, operating, adjust-
ing, maintaining, cleaning, repairing, & transporting the machine.
NOISE LEVEL
The noise level of an idling metal saw, fitted with a 180-tooth blade (supplied as standard
by Brobo Group) has been measured to be below 85 dBA. This complies with the Australian
Occupational Health & Safety (Noise) Regulations 1992.
Please note that peak impulse noise levels will be experienced due to variables including blade
characteristics, type, & condition. This will also vary accordingly depending on the size &
type of sample being cut. Under these circumstances, management should make available
to the operator(s) the appropriate hearing protection equipment as prescribed under the
above-stated act.
WARNING – UNAUTHORISED MODIFICATIONS/REPLACEMENTS/USE
The manufacturer declines any responsibility whatsoever, either civil of criminal,
in the case of unauthorised interference or replacement of one or more parts or
assemblies on the machine, or if accessories, tools & consumable materials used
are different from those recommended by the manufacturer, or if the machine is
inserted in a plant system & its proper function is altered.
PART 3 SAFETY & ACCIDENT PREVENTION
COMPRESSED AIR SUPPLY
Various functions of the saw are carried out via the use of 6 bar compressed air. During these
operations, situations would arise where machine parts & materials are clamped together &
would potentially pose a serious safety issue to an inexperienced operator. Operators should
be thoroughly instructed about these hazards.
Only a qualified electrician should carry out regular maintenance of this system.
LIGHTING
Insufficient lighting during the operation of the saw unit would constitute a safety hazard for
the people concerned. For this reason, the user of the machine must provide adequate light-
ing in the working area to eliminate areas of shadow, whilst also prevent dazzling illumination
sources (Reference standard ISO 8995 - 2002 ‘Lighting of Indoor Workplaces’).
CONNECTION
Check that the power supply cables, compressed air supply (if applicable) & coolant system
complies with, & are operating within the acceptable range of the saw capabilities.
Faulty, damaged or worn components must be replaced immediately.
EARTHING SYSTEMS
The installation of the earthing system must comply with the requirements stated in the:
IEC Standards Part 195: Earthing & Protection Against Electric Shocks 1998.
POSITION OF THE OPERATOR
The user controlling the machine saw operations must be positioned as shown below.
PART 3 SAFETY & ACCIDENT PREVENTION
ADVICE FOR THE OPERATOR
Protective eyewear or goggles must be worn at all times while
attending & operating the metal saw.
Do not attempt to operate the machine unless all safety guards
are in operation. The guard must fully cover the blade when the
head is in the uppermost position.
Support the workpiece on both sides of the machine to prevent it
falling or jamming during the
Always keep the workplace are as clean as possible.
Remove equipment, tools or any other objects from the cutting
zone.
The operator MUST NOT conduct any risky operations or those
not required for the cutting in course (e.g. remove swarf shavings
from the machine while cutting).
Never move the saw while the machine is operating.
Any maintenance work performed on the hydraulic, pneumatic or
coolant systems must be carried out only after the pressure in
the system has been released.
Always disconnect the power supply to the machine before car-
rying out any maintenance work or adjustments. This includes
cases of abnormal operations of the machine.
Do not wear loose clothing with long sleeves & oversized gloves,
bracelets, necklaces or any other loose object that may become
entangled in the machine’s blade during cutting. Long hair must
be tied back or placed in a hair net.
Ensure that hands & arms are kept clear of the cutting zone when
the machine is operating.
PART 3 SAFETY & ACCIDENT PREVENTION
Ensure that the specimen being cut is secured firmly in the vice
clamps & the machine has been correctly set. Figure below show
some examples of how to correctly clamp different specimen pro-
files. Before commencing the cut, be sure the vice(s) is securely
clamped & the machine set-up is correct.
Always turn off the machine before carrying out any repair work.
Consult the Brobo Group Engineering Department in the country
in which the machine was initially purchased
If the blade jams during a cut, activate the emergency stop func-
tion immediately. Do not continue forcing the blade through. This
could damage the blade, the specimen or be a cause for potential
injury to the operator.
When cutting very small specimens, ensure that the workpiece
is not dragged behind the back fence support, where it could get
lodged behind the blade.
Do not use cutting blades of different sizes to those recommend-
ed to the machine’s specifications. Always follow safe practices
& inspection procedures when installing blades.
PART 3 SAFETY & ACCIDENT PREVENTION
MACHINE SAFETY DEVICES
This product & maintenance manual is not purely intended as a guide for the usage, op-
eration, & maintenance of the saw unit in a strict production environment; it is instead an
instrument to providing information on how to use the machine correctly & safely. The fol-
lowing standards listed below, which are applicable to the Brobo Group S315/S350/S400
Series Metal Cutting Saw, are those specified by the EEC Committee that governs the safety
of machinery, health & safety at work, personal protection & safeguarding of the work en-
vironment. In addition, the saw also complies with the Australian Standards regarding the
safeguarding & general requirements for electrical equipment.
REFERENCE STANDARDS
MACHINE SAFETY
• EEC Directive No. 98/37/CE - Machines Directive
• EEC Directive No. 91/368 - 94/68 - Amends sections of EEC Directive No. 98/37/
CE relating to machine safety
• EEC Directive No. 73/23 - Low Voltage Directive
• AS4024.1 - 1996 - Safeguarding of Machinery
HEALTH & SAFETY AT WORK
• AS3100 - 2002 - General Requirements for Electrical Equipment
• OH. & S. 1995.81/1995 - Compliance References
• EEC Directive No. 80/1107; 83/477; 86/188; 88/188; 88/642 - Protection of
workers against risks caused by exposure to physical, chemical & biological agents in
workplace
• EEC Directive No. 73/23 & Special EEC Directives No. 89/654; 89/655 - Improve-
ments in health & safety at work
PART 4 MAIN FUNCTIONS & OPERATIONS
CUTTING HEAD
As the name suggests, the cutting head is the focal area where most of the specimen cutting
takes place. Thus, correct saw blade selection such as size, number of teeth & tooth pitch
are all critical factors that determine the overall performance & quality of the final cuts. In
addition, the use of correct saw blade provides minimum burr to the workpiece while maxi-
mising the safety to the operator during each cutting procedure.
SAFETY GUARD
The primary purpose of the saw safety guard is to
protect the user from the spinning blade. It also
functions as a safety device to protect the operator
from any broken tooth, swarf or high-velocity parti-
cles that might be dislodged by the cutting process.
1
CUTTING HEAD
SAFETY GUARD 2
3DEADMAN TRIGGER
4CONTROL BOX
PIVOT BLOCK 6
7 BACK FENCE
8 CLAMPING TABLE
MANUAL VICE 5
9 SHORT TANK
10 CABINET STAND
PART 4 MAIN FUNCTIONS & OPERATIONS
SAW HANDLE - DEADMAN TRIGGER DMT
Although comes as a standard, the saw handle
can be installed with a Dead Man’ type trigger
switch enabled instant switching at the operator’s
control. This particular configuration allows for
increased efficiency & safety.
MAIN POWER STANDBY & SPEED SELECTOR
The rotary Main power switch also serves as the speed selector switch. When the speed is
selected the saw is set to “STANDBY” mode.
The “STANDBY” lamp illuminates to provide a warning to personnel the saw is at the ready.
AT any time the “Dead Man” trigger is activated the saw will run.
MANUAL VICE CLAMP
The manual vice clamp lever allows speedy clamping of
material with ergonomically designed clamp lock.
STANDBY
PART 4 MAIN FUNCTIONS & OPERATIONS
G MODEL DESIGN
Quick Action Mitering
Larger Cutting Capacity
Vice Clamp Capacity is 153mm
Heavy Duty Cast Iron Table,
Backfence Pivot Block & Rotary Table.
The saw blade always cut at the center
of the talbe either standard cutting or
any angular cutting without repositioning
the wearplates.
153mm
QUICK ACTION
HANDLE
QUICK ACTION MITERING
1. To adjust the cutting angle, untighten the quick action handle, as shown.
2. Adjust the angle on the rotary table to suit.
(Self-locating pin locates at 900 & 450 left & right)
3. Re-tighten the quick action handle. The saw is now ready for use.
ANGULAR CUT 45 CCW ANGULAR CUT 45 CW
STANDARD CUT AT 0
PART 4 PREPARE FOR OPERATION
PREPARE FOR OPERATION
The following procedure is recommended for the correct cutting using the BROBO GROUP
S315/S350/S400 Series Metal Cutting Saw.
PROCEDURE
Using a non-flammable & toxic free solvent, clean the machine to remove any corrosion pro-
tective coating prior to use.
1. Ensure that both the air & electric power systems are turned on, where applicable. The
electrical power source must be available before any pneumatic functions will operate.
2. To adjust the cutting angle, untighten the quick action handle. Fine-tune the angle required,
then re-tighten the quick action handle.
3. Place the cutting specimen you wish to cut into the vice clamps. Manually adjust the
clamps so that the jaws are clamped firmly to the workpiece. With a pneumatic vice,
manually adjust the clamps to a clearance of 3 - 7mm. (For correct clamping of material,
please refer to PART 3 Advice for the Operator)
NOTE -The vice clamps advance with an approximate 10mm pneumatic stroke to apply
a clamping pressure of 6 bar (87 psi).
4. Position the vice clamps & component as close to the blade as possible without interfering
with the travel of the blade or guard. Vice relocation is required whenever the head angle
is altered.
5. For pneumatic vices, set the vice clamping pressure from the pressure regulators located
on the main control unit door. If for any reason this pressure is not available on a contin-
uous basis, the regulator on the air service unit must be set slightly below the available
line pressure, & the safety low-pressure indicator valve needs to be reset to correspond
with the newly available pressure. The need to change the pressure is necessary to allow
for lighter materials with hollow cross sections to be cut without deforming the walls thick-
nesses.
6. To initiate the cutting process, either turn the switch to 1 or 2 settings or press the
START buttons.
• Vice jaws automatically close & apply clamping pressure.
• Position blade to commence cutting through component & maintaining a constant
forward feed cutting rate until the end of the stroke.
• Return saw cutting head to the initial rest position.
• Vice clamps release workpiece
7. The machine is ready for the next cutting cycle.
WARNING - SAFETY GEAR
Protective clothing, safety glasses and gloves should always be worn while
loading parts, operating the machine, or undertaking any maintenance work
on the machine.
PART 4 MAIN FUNCTIONS & OPERATIONS
OPERATION RECOMMENDATIONS
• Select the correct saw blade with the correct tooth pitch & form to suit the material to be
cut to provide minimum burr & maximum blade lifespan.
• Use the smallest diameter blade & coarsest pitch that is practical within the required
speed & material limitations.
• Generally, use a tooth pitch to give 2 - 4 teeth engagement with the material during cut-
ting.
• Ensure that sufficient coolant is flowing over the cutting teeth.
• Do not allow the machine’s gearbox to run idle in the upright position for more than 3
minutes otherwise, damage can occur to the drive system.
• The rate of feed affects the quality of the final cut & blade life. This varies also by the
material & crosssectional dimensions. When cutting stainless steel or high carbon steel
(Brinell hardness above 200), the slowest speed machine should be used together with a
cobalt type high-speed steel blade.
• When manually feeding the saw head, keep in mind to maintain a steady, continuous pres-
sure, thus avoiding work hardening on the cutting piece. Avoid ‘forcing’ the blade through
the material as this might damage or break the blade.
• As a rule of thumb the softer the component, the faster the rate of speed. Thus, it is
recommended that slower speeds be used for hard & tough materials & higher speeds
for soft, ductile materials. Note that for non-ferrous materials such as brass, copper, al-
uminium etc. require much faster speeds than provided on this machine. If these are the
majority of materials cut, a Brobo NF Series machine should be considered.
OPERATIONAL SAFETY CHECKS
• Do not attempt to hold the work piece by hand.
• Always use the vice to clamp the work. Properly support any overhanging portion so the
work piece is level with the base of the machine.
• Do not have any part of your body in line with the path of the cutting blade.
• Allow the blade to reach full speed before cutting.
• Ease the cutting blade against the work piece. Do not use excessive force when cutting.
• Keep hands away from cutting area. Do not attempt to remove cut material or swarf while
blade is moving.
• After finishing the cut, raise the saw arm up, release the switch and wait for the blade to
stop completely before removing your work piece or off-cut piece.
• Immediately clean up any coolant spills.
• Before making any adjustments, bring the saw to a complete standstill and disconnect
from the AC power source.
PART 5 ADJUSTMENT
CHANGING THE BLADE
1. Disengage the linkage arm that is between the guard linkage system & pivot block (at the
pivot block by compressing the spring & moving the bolt through the slot).
2. Slide the saw guard up as far as possible (as if it was opening during a cutting cycle) to
gain access to the spindle nose.
3. Loosen the spindle screws (LH thread), using the 14mm hexagonal wrench provided, &
remove the counter plate. To loosen the spindle screw, insert the wrench (short end) into
the socket head cap screw & firmly knock the wrench with the palm of your hands until
the screw is loosened. If this method fails to free the screw, place a piece of timber under
the blade of the machine, & loosen (or tighten) the screw while holding the saw head of
the machine down (blade against the timber).
4. Remove the worn saw blade away from the spindle hub. Using a soft brush, clean the face
of the spindle, counter plate & mounting faces of the blade of any dirt or swarf that was
trapped by the previous cutting cycles.
5. Place the old saw blade into the new blade packaging & disposed of it safely. Carefully
mount the new blade onto the spindle hub, ensuring that the blade is rotating into & to-
wards the back fence, & replace the counter plate utilising the drive pins as guides as it
passes through the pinholes on the blade.
6. Rotate blade back against the drive pins in a counter-clockwise & finger tighten the spindle
screw.
7. Firmly retighten the spindle screws, ensuring that the saw blade spins uniformly & aligned
parallel with the safety guard.
8. Lower the outer guards & make certain the pin of the linkage arm is re-engaged with the
track on the inner guard & reconnect the guard linkage.
9. The new blade is ready for use. To check that the blade is performing correctly, carry out
a sample cut on a piece of off-cut.
10. If optional devices are supplied, mount the stock support & rollers on either side of the
clamping table. Normally stock should feed on the left to right, but it can be feed from the
right to left if required.
DANGER - ELECTROCUTION
Make certain that the power to the manual saw is turned off before proceed-
ing with changing
the saw blade.
This manual suits for next models
3
Table of contents
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